Insulator.



L. S'IEINBERGER.

INSULATOR.

APPUCATION FILED JAN.3, H313.-

Patented June 15, 1915.

ENTUR LOUIS srnrnnnnenn, or nnooxmm, NEW Yonx.

mscmron.

1,143,149. Original application filed February 10,

Specification of Letters page.

a, 1913. Serial No. 739,981.

To all whom it may concern:

Be it known that I, LOUIS Srnmnnncnn, residing at Brooklyn, in the county of Kings and State of New York, have invented "certain new and useful Improvements in Insulators, of which the following is a specification.

This invention relates to improvements in insulators, such as are shown in my copending application, Serial No. 676,879, filed February 10, 1912, of which this application is a division.

The particular type of insulator to which the'invention relates, is that which may be secured rigidly to a suitable support or supports and be capable of withstanding high potentials.

Among the more important objects of the invention may be enumerated the following: I. To provide an insulator for the purpose referred to, having a degree of strength commensurate with the use. of metal, but without proportionate danger of. arcing, and in which mechanical strains are well distributed. II. To provide an insulator attaining the objects above, partly through the securing means employed and their re lation to the insulator body. III. To provide an insulator of such construction that it may be rigidly supported at either one or both its ends, as desired. IV. To provide an insulator with a plurality of separate members for connecting it to a support or supports, said members extending entirely through the insulator body and the insulator being adjustable thereon. V-. To provide means for fastening the attaching members to the supports, and provide means on the attaching members for engaging the insulator body to hold it in adjusted relation along the length of said attaching members.

Other objects and aims of the invention, more or less specific than those referred to above, will be in part obvious and inpart pointed out in the course of the following description of the elements, combinations, arrangements of parts and applications of principles, constituting the invention; and the scope of protection contemplated will be indicated in the appended claims. i

In the accompanying drawingswhich are to be taken as a part of this specification and in which I have shown a merely preferried-form of embodiment of the invention: Figure l is a central, vertical section,

with certain parts in elevation, showing an embodiment of my invention, as in its supported position; Fig. 2 is a bottom plan view of'the insulator shown in Fig. 1 detached from its supports; and Fig. 3 is a VIGW partly in elevation and partly in section, showing how the attaching parts of the insulator may serve to secure the insul'ator to a support at one end only.

eferring to the drawings by reference numerals for a more detailed description of the invention, the numeral 6 indicates the body portion of the insulator, which may preferably be of general cylindrical form. The insulator body 6 may be provided with a plurality of sheds 7, 8, and 9 of different sizes, the largest being at. the top, and the smallest at the bottom, or otherwise,as desired. Integral with the shed 9 and with the insl'ilator. body 6 is a skirt 10 which extends downwardly from the insulator body. The opposite end ofthe well be plane, as shown;

Encircling the insulator body transversely are strengthening members 11, which in the illustrated embodiment, take the form of rings having some such cross section, as shown, for instance, channeled rings with the bulge inward, and having lateral flanges whereby the effect of the cable strains is distributed. Preferably, these members are continuous rings, though obviously'they may be non-continuous, or insections, and they may be molded in the body of the insulator, or otherwise, secured thereto, as desired. These strengthening rings are located between the sheds 7 and 8,,and 8 and 9, respectively, and serve to define reinforcing portions of the insulator body which take the strain of, the cables 12-, or the like, said:

cables straining usually in opposite directions. j v

Asa means for securingthe insulator body rigidly to a' support, Isproyide a pair of members that extend entirely through the insulator body transversely of the line of strain vof the cables, said pair ofmembers being accommodated in appropriately spaced apertures 13, which extend through the body from the plane topto the opposite end thereof, opening into the space defined by the skirt 10. If desired, these attfchmg members may take the form of b0 ts 15, headed at one end and threaded at theother, which bolts, when theinsulator body has Patented June 15, 1915. 1912, Serial No. 676,879. Divided and this a iiue uen filed Januar insulator body may tures 13 by means of tubular metallic members 17, which preferably project beyond the opposite ends of the body. These tubular members may be molded rigidly a. the

mail d h hill. till lll'llll'ltll (lllllflt loosely in the apertures 18, so that the 111- sulator body may be adjusted longitudinally thereof, or, inversally, so that the tubes may be adjusted longitudinally through the insulator to dispose a greater or less length of the tube beyond either end of the insulater, as desired. Where the tubes are employed they may be threaded exteriorly at their ends to receive nuts, as 19 in Fig. 3, for clamping the insulator to the support. In attaching the insulator to a double support, as in Fig. 1, however, the headed bolts 15 are preferably dropped into place within the tubes and are held by nuts 18, suitable washers being interposed between said nuts and the lower arm 16.

The threaded portion of the tubes 13 may be extended for any distance from the ends of the tubes and nuts 19 applied thereto, either at one or both ends of the insulator body for holding thebody in a given adjusted position.

I may, however, dispense with the bolts 15 and provide merely the tubular members '18 having the nuts 19 at their opposite ends, those at one end engaging the undersurface of the insulator, and those at the other end engaging the outer surface of the support to clamp the insulator to the support. In this case I may adjust the tubeslongitudinally of the insulator, so as to accommodate any thickness of material for the support 16 without leaving an unsightly amount of the tube projecting beyond the upper nuts 19.

To apply the insulator to the spaced arms of adouble support without the use of the bolts 15, the tubes may be adjusted so as to project substantially equally from opposite ends, and the nuts 19 be applied to clamp against the outer sides of the two supports. If the space between the arms is greater than the length of the insulator body I may cause the plane top of the insulator to abut the 'under-surface"of the upper arm, and cause it to hold that position by means of nuts on the tubes, engaging the under-surface of the insulator, and clamping it against the surface of the opposing support 16. By using nuts at both ends of the in sulator body, the body may be held spaced from both of the arms 16. I

Obviously, with respect to Fig. 3, it is apparent I may employ instead of tubes threaded at both ends, tubes threaded at one end and headed at the other, or I may employ solid bolts threaded at both ends or a double support, have the advantage of possessing degree of flexibility, not present in the SOlld bolt, and of value in absorbing Sudden shocks.

I ,e as 0 have the t 1:1, 01 are dump i l apertures 13 arranged in the insulator bo y in the line of the diameter of the body, which line is also the line of strain of the cables.

The construction described has the advantage that it is most readily put into and removed from position, and affords a maximum of strength and rigidity in resisting strains, and that it is also readily adaptableto the varying requirements arising in practice.

It will be understood that I do not limit myself to the form of insulator herein shown, nor to the exact form or arrangement or number of the securing members, as other arrangements may be more readily employed for other forms of insulators, nor do I desire to limit myself to the use of any particular material. I prefer, however, for the insulator body, to employ the insulating material, commonly known in the art as Electrose.

As many changes could be made in this construction without departing from the scope of the following claims, it is intended that all matter contained in the above dedrawing shall be interpreted as illustrative only and not in a limiting sense.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is:

1. An insulator comprising a body of insulating material having means for attaching a member thereto, said member being adapted for exerting a strain transverse to the length of the body, said body having a plurality of apertures extending longitudinally therethrough spaced apart in the line of strain from said member, attaching members extending through said apertures, said attaching members being loose in said a ertures so that said body is free to move a ong said attaching members, means at the ends of said attaching members for connecting said attaching members to a support, an adjustable means on said attaching members intermediate their length engaging an outer surface portion of the insulating body for retaining said insulator in one position on '1 I '12 said attaching members.

2. An insulator comprising a body of insulating material having an aperture extending therethrough, an attaching member extending through said aperture, said attachingmember being fixed to a support at Ill means both its ends, and being loose in said aperture so that said body is free to move along the length of said attaching member, and adjustable means for retaining the body in one position along the length of the attaching member. I

3. In an insulating means, the combination with a pair of supports spaced apart, and an insulator disposed therebetween, of attaching means for attaching the insulator to said pair of spaced supports, said attaching means comprising a rod extending be tween and engaging said supports, a sleeve mounted upon said rod, said insulator having means engaging said sleeve to support said insulator upon said sleeve, said means permitting free movement of said insulator longitudinally of said sleeve, and a part ad justable upon the sleeve engaging the insulator to retain the insulator in one position upon the sleeve.

4. In an insulating means, the combination With a pair of supports spaced apart, and an insulator disposed therebetween, of

attaching means for attaching the insulator to said pair of spaced supports, said attaching means comprising a sleeve extending between and engaging said supports, said insulator having an aperture through which the sleeve extends to support the insulator,

said sleeve being loose in said aperture so that said insulator is free to move along-said sleeve, the sleeve being threaded, anut ro- LOUIS STEINBERGER.

Witnesses:

G nnronn HANDRE, NATHALIE THOMPSON, 

